Underground water level monitoring and early warning method and system

Abstract

The invention relates to an underground water level monitoring and early warning method and system, and relates to the field of underground water monitoring technologies, and the method comprises the steps: obtaining an underground water level value and demand response duration; establishing a monitoring interval and an equivalent interval; determining a monitoring water level set in the monitoring interval, determining an equivalent water level set in the equivalent interval, and determining interval similarity according to the equivalent water level set and the monitoring water level set; defining a similar interval according to the interval similarity, and determining a change interval according to the similar interval; judging whether an underground water level value greater than the upper limit water level value exists in the change interval; if not, determining the fixed threshold as a water level early warning threshold; if yes, an arrival time point is defined, a processing time point is determined according to the arrival time point and the demand response duration, and the underground water level value corresponding to the processing time point is determined as a water level early warning threshold value. The underground water level monitoring and early warning system has the effect of improving the monitoring and early warning effect on the underground water level.

Description

Technical Field

[0001] The present application relates to the field of groundwater monitoring technology, and in particular to a groundwater level monitoring and early warning method and system. Background Art

[0002] With the impact of global climate change and human activities, the management and protection of groundwater resources have become increasingly important. Changes in groundwater levels are directly related to the sustainable use of water resources, agricultural irrigation, urban water supply security, and the balance of the ecological environment. Especially in areas where extreme climatic conditions such as droughts and floods occur frequently, an effective groundwater level monitoring and early warning system is essential for preventing natural disasters, reducing losses, and protecting people's lives.

[0003] In the related technology, when monitoring groundwater levels, wireless radar water level meters are generally used, that is, flood thresholds are set in advance, and water level conditions are obtained in real time through the water level meter. The obtained water level conditions are compared with the set flood thresholds to determine whether early warning processing is needed, so that when the water level is high and floods may occur, staff can intervene in time to reduce the occurrence of flood accidents.

[0004] In the above-mentioned related technologies, a fixed flood threshold is generally set during groundwater level monitoring. However, when a flood occurs, the rising speed of the groundwater level is not fixed. At this time, if a faster water level rises, even if an early warning is issued, the staff will have a short time to react, resulting in poor monitoring and early warning effects of the groundwater level. There is still room for improvement. Summary of the invention

[0005] In order to improve the monitoring and early warning effect of groundwater level, the present application provides a groundwater level monitoring and early warning method and system.

[0006] In the first aspect, the present application provides a groundwater level monitoring and early warning method, which adopts the following technical solution: A groundwater level monitoring and early warning method, comprising: Obtain groundwater level values ​​and demand response time; A monitoring interval with the current time point as the rear end point and a width of the preset monitoring duration is established on the preset time axis, and a monitoring water level set is determined according to the groundwater level value in the monitoring interval; Establish a historical interval on the time axis with the current time point as the end point and a width of the preset historical duration, and randomly define an equivalent interval with the same width as the monitoring interval in the historical interval, where the historical duration is greater than the monitoring duration; Determine an equivalent water level set in an equivalent interval according to the groundwater level value, and analyze the equivalent water level set and the monitored water level set to determine the interval similarity; Determine the interval similarity with the largest value according to the preset sorting rules, define the equivalent interval corresponding to the interval similarity as the similar interval, and establish a change interval with a width of the preset change duration with the rear end point of the similar interval as the front end point; Determine whether there is a groundwater level value greater than a preset upper water level value in the variation interval; If there is no groundwater level value greater than the upper water level value, the preset fixed threshold is determined as the water level warning threshold; If there is a groundwater level value greater than the upper limit water level value, the time point corresponding to the first groundwater level value greater than the upper limit water level value is defined as the arrival time point, and the processing time point is determined based on the arrival time point and the demand response time, and the groundwater level value corresponding to the processing time point is determined as the water level warning threshold.

[0007] Optionally, the step of analyzing the equivalent water level set and the monitored water level set to determine the interval similarity includes: A one-to-one comparison is performed between the groundwater level values ​​in the equivalent water level set and the monitoring water level set to determine the two corresponding groundwater level values ​​as binding values; Performing a difference calculation based on all two mutual binding values ​​to determine the binding mutual difference; The first calculation parameters corresponding to the mutual differences of each binding are determined according to the preset first parameter matching relationship, and the interval similarity is determined by performing calculation according to all the mutual differences of the binding and the corresponding first calculation parameters.

[0008] Optionally, after the interval similarity is determined, the groundwater level monitoring and early warning method further includes: The difference calculation is performed based on the groundwater level values ​​obtained at any two adjacent time points in the equivalent water level set and the monitoring water level set to determine the changed water level value; The difference between the water level set and the monitored water level set is calculated to determine the set change difference; Determine the second calculation parameter corresponding to each set change difference according to the preset second parameter matching relationship, and perform calculation according to all the set change differences and the corresponding second calculation parameters to determine the change degree value; The interval similarity is updated by calculation based on the interval similarity, the change degree value and the preset weight parameter.

[0009] Optionally, after the interval similarity is updated and determined, the groundwater level monitoring and early warning method further includes: Determine whether there are at least two identical intervals with the same and maximum interval similarity; If there are not at least two identical intervals with the same and largest interval similarity, the identical interval corresponding to the largest interval similarity is determined as the similar interval; If there are at least two identical intervals with the same and largest interval similarity, the identical interval corresponding to the largest interval similarity is determined as the candidate interval; In each candidate interval, a variable water level value is randomly selected as the standard water level value, and the remaining variable water level values ​​are defined as comparative water level values; Calculate the representative parameter value according to the standard water level value and all the comparison water level values, and determine the representative parameter value with the largest value according to the sorting rule, and define the standard water level value corresponding to the representative parameter value as the representative water level value; Constructing a similar interval based on the representative water level value and the preset similar value; The changed water level values ​​in the similar intervals are counted to determine the interval capacity, and the interval capacity with the largest value is determined according to the sorting rule, and the candidate interval corresponding to the interval capacity is determined as the similar interval.

[0010] Optionally, after the interval capacity is determined, the groundwater level monitoring and early warning method further includes: Determine whether there are at least two intervals that contain the same number of maximum candidate intervals; If there are not at least two candidate intervals with the same maximum number of intervals, the candidate interval corresponding to the maximum number of intervals is determined as the similar interval; If there are at least two candidate intervals with the same maximum number of intervals, the candidate interval corresponding to the maximum number of intervals is determined as the waiting interval, and the external environment parameters are obtained according to the current monitoring interval and the waiting interval; The environmental similarity is determined by calculation based on the two external environmental parameters, and the environmental similarity with the largest value is determined based on the sorting rule, and the waiting interval corresponding to the environmental similarity is determined as the similarity interval.

[0011] Optionally, after the processing time point is determined, the groundwater level monitoring and early warning method further includes: The groundwater level value corresponding to the treatment time point is defined as the treatment water level value; Performing mean calculation based on the bound mutual differences determined in the similar interval and the monitoring interval to determine the mean bound difference; The normal value range is defined according to the mean binding difference and the preset error tolerance value; The mean value is calculated based on the bound mutual differences in the normal value range to determine the collective difference value, and the water level warning threshold is determined based on the processed water level value and the collective difference value.

[0012] In the second aspect, the present application provides a groundwater level monitoring and early warning system, which adopts the following technical solution: A groundwater level monitoring and early warning system, comprising: An acquisition module is used to obtain the groundwater level value and demand response time; A processing module, connected to the acquisition module and the judgment module, for storing and processing information; A judgment module, connected with the acquisition module and the processing module, for judging the information; The processing module establishes a monitoring interval with the current time point as the rear end point and a width of the preset monitoring time on the preset time axis, and determines the monitoring water level set according to the groundwater level value in the monitoring interval; The processing module establishes a historical interval on the time axis with the current time point as the end point and a width of a preset historical duration, and randomly delimits an equivalent interval with the same width as the monitoring interval in the historical interval, wherein the historical duration is greater than the monitoring duration; The processing module determines an equivalent water level set in an equivalent interval according to the groundwater level value, and performs analysis based on the equivalent water level set and the monitored water level set to determine the interval similarity; The processing module determines the interval similarity with the largest value according to the preset sorting rule, defines the equivalent interval corresponding to the interval similarity as the similar interval, and establishes a change interval with a width of the preset change duration with the rear end point of the similar interval as the front end point; The judging module judges whether there is an underground water level value greater than a preset upper water level value in the variation interval; If the judgment module determines that there is no groundwater level value greater than the upper water level value, the processing module determines the preset fixed threshold as the water level warning threshold; If the judgment module determines that there is a groundwater level value greater than the upper limit water level value, the processing module defines the time point corresponding to the first groundwater level value greater than the upper limit water level value as the arrival time point, and determines the processing time point based on the arrival time point and the demand response time, and determines the groundwater level value corresponding to the processing time point as the water level warning threshold.

[0013] In a third aspect, the present application provides a computer storage medium capable of storing corresponding programs, which has the characteristics of improving the monitoring and early warning effect of groundwater level, and adopts the following technical solutions: A computer-readable storage medium stores a computer program that can be loaded by a processor and execute any of the above-mentioned groundwater level monitoring and early warning methods.

[0014] In summary, the present application includes at least one of the following beneficial technical effects: 1. When monitoring the groundwater level, the change of the current groundwater level can be monitored to determine similar changes from the historical interval, and the threshold that needs to be warned can be determined through equivalent processing, so that the determined threshold can allow the staff to have more sufficient time to handle the warning after the water level warning; 2. When determining the interval similarity, the water level conditions and water level changes between each time point can be comprehensively considered, so that the determined interval similarity is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a flow chart of the groundwater level monitoring and early warning method.

[0016] Figure 2 It is a module flow chart of the groundwater level monitoring and early warning method. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-Figure 2 It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0018] The embodiments of the present application are further described in detail below in conjunction with the drawings in the specification.

[0019] The present application discloses a groundwater level monitoring and early warning method, referring to Figure 1 The method flow of the groundwater level monitoring and early warning method includes the following steps: Step S100: Obtaining the groundwater level value and demand response time.

[0020] The groundwater level value is the underground water level detected by the water level meter. The demand response time is the minimum response time required by the staff to deal with possible flood disasters, that is, the time required between the flood warning and the occurrence of flood disasters.

[0021] Step S101: establishing a monitoring interval with the current time point as the rear end point and a width of the preset monitoring duration on a preset time axis, and determining a monitoring water level set according to the groundwater level value in the monitoring interval.

[0022] The time axis is a coordinate axis formed by the combination of various time points. The coordinate axis points from the time points that have passed to the time points that have not yet arrived, and the direction of the time points that have passed is determined as the front, and the direction of the time points that have not yet arrived is determined as the back; the monitoring duration is the duration set by the staff to monitor the groundwater level conditions. The duration is a fixed duration, which is specifically input by the staff according to the actual situation to establish a monitoring interval so as to obtain and analyze the data within the monitoring duration; the monitoring water level set is a set of groundwater level values ​​obtained within the monitoring interval, and the groundwater level values ​​in the set are sorted in order according to the acquisition time.

[0023] Step S102: Establish a historical interval on the time axis with the current time point as the rear end point and a width of a preset historical duration, and randomly define an equivalent interval with the same width as the monitoring interval in the historical interval, wherein the historical duration is greater than the monitoring duration.

[0024] The historical duration is the duration set by the staff for analyzing the historical conditions of the groundwater level in the area, such as one year. The establishment of historical intervals facilitates the acquisition and analysis of data within the historical duration; the demarcation of equivalent intervals facilitates the subsequent analysis of the groundwater level conditions in the two intervals.

[0025] Step S103: determining an equivalent water level set in an equivalent interval according to the groundwater level value, and analyzing the equivalent water level set and the monitored water level set to determine interval similarity.

[0026] The equivalent water level set is a set consisting of the underground water level values ​​in the equivalent interval. The order of the values ​​in the set is also sorted in chronological order, which is consistent with the sorting method of the monitoring water level set; the interval similarity is a value that reflects the similarity of the water level between the equivalent interval and the monitoring interval. The specific determination method can refer to steps S200-S202.

[0027] Step S104: Determine the interval similarity with the largest value according to the preset sorting rule, define the equivalent interval corresponding to the interval similarity as the similar interval, and establish a change interval with a width of the preset change duration with the rear end point of the similar interval as the front end point.

[0028] The sorting rule is a method set by the staff to sort the size of values, such as the bubble method. The sorting rule can be used to determine the interval similarity with the largest value, that is, the equivalent interval corresponding to the interval similarity is similar to the water level of the current monitoring interval. At this time, a similar interval is defined to distinguish different equivalent intervals for subsequent analysis. The change duration is a fixed duration set by the staff for predictive analysis of subsequent water level changes. The change interval is established to facilitate analysis and processing of the data obtained within the change duration.

[0029] Step S105: determining whether there is a groundwater level value greater than a preset upper water level value in the variation interval.

[0030] The upper limit water level value is the minimum groundwater level value that needs to be reached when a flood disaster occurs, set by the staff. The purpose of the judgment is to know whether a flood disaster will occur in the subsequent change interval under the change of the current similar interval.

[0031] Step S1051: If there is no groundwater level value greater than the upper water level value, a preset fixed threshold is determined as the water level warning threshold.

[0032] When there is no groundwater level value greater than the upper limit water level value, it means that under the current water level changes, flood disasters will basically not occur. At this time, the determined fixed threshold is determined as the water level warning threshold for normal monitoring, where the fixed threshold is a fixed threshold set by the staff.

[0033] Step S1052: If there is a groundwater level value greater than the upper limit water level value, the time point corresponding to the first groundwater level value greater than the upper limit water level value is defined as the arrival time point, and the processing time point is determined based on the arrival time point and the demand response time, and the groundwater level value corresponding to the processing time point is determined as the water level warning threshold.

[0034] When there is a groundwater level value greater than the upper limit water level value, it means that there is a high possibility of flood disasters under the current water level changes. At this time, the arrival time point is defined to record and distinguish the time point when the flood disaster first occurred; the processing time point is the latest response time point when the staff can deal with the flood disaster in time. The processing time point is determined by the required response time of moving forward along the time axis of the arrival time point; the groundwater level value corresponding to the processing time point at this time is the warning value when the staff can control and deal with the flood disaster in time. It can be determined as the water level warning threshold to improve the monitoring and early warning effect of the groundwater level.

[0035] The steps for analyzing the equivalent water level set and the monitored water level set to determine interval similarity include: Step S200: performing a one-to-one comparison of groundwater level values ​​in the equivalent water level set and the monitoring water level set to determine two corresponding groundwater level values ​​as bound values.

[0036] The one-to-one comparison method is to compare the values ​​at the same position in the two sets, for example, the first groundwater level value in the equivalent water level set is compared with the first groundwater level value in the monitoring water level set, and a binding value is defined to determine the two corresponding groundwater level values.

[0037] Step S201: performing difference calculation based on all two mutual binding values ​​to determine the binding mutual difference.

[0038] The binding difference is the difference between the two binding values, which is an absolute value.

[0039] Step S202: determining the first calculation parameter corresponding to each binding mutual difference according to the preset first parameter matching relationship, and performing calculation according to all binding mutual differences and the corresponding first calculation parameter to determine the interval similarity.

[0040] The first calculation parameter is a parameter used to calculate the interval similarity. Different binding mutual differences indicate that the distances between the two binding values ​​are different. When the difference is large, it means that the similarity that can be provided is low. At this time, the corresponding first calculation parameter is also smaller. The first parameter matching relationship between the two is entered in advance by the staff. It is necessary to ensure that the value obtained by multiplying the smaller binding mutual difference by the corresponding first calculation parameter is greater than the value obtained by multiplying the larger binding mutual difference by the corresponding first calculation parameter. The interval similarity can be determined by multiplying the binding mutual difference by the corresponding first calculation parameter and adding them all up.

[0041] After the interval similarity is determined, the groundwater level monitoring and early warning method also includes: Step S300: performing difference calculation based on groundwater level values ​​obtained at any two adjacent time points in the equivalent water level set and the monitoring water level set to determine the changed water level value.

[0042] The changed water level value is the value of the water level change at adjacent time points, and is determined by subtracting the groundwater level value obtained at the time point at the front end of the time axis from the groundwater level value obtained at the time point at the back end of the time axis.

[0043] Step S301: performing difference calculation based on the corresponding changed water level values ​​in the equivalent water level set and the monitored water level set to determine the set change difference.

[0044] The set change difference is the difference between the changed water level values ​​determined at the corresponding positions. The difference is an absolute value. For example, the changed water level value between the first groundwater level value and the second groundwater level value in the equivalent water level set and the changed water level value between the first groundwater level value and the second groundwater level value in the monitoring water level set.

[0045] Step S302: determining the second calculation parameter corresponding to each set change difference according to a preset second parameter matching relationship, and performing calculation according to all the set change differences and the corresponding second calculation parameters to determine the change degree value.

[0046] The second calculation parameter is a parameter used to determine the similarity of changes. Different set change differences indicate different changes in water levels at two time points, and the corresponding second calculation parameters are also different. The degree of change value is a numerical value reflecting the similarity of water level changes, which is determined by multiplying all the set change differences by the corresponding second calculation parameters and adding them all together; the second parameter matching relationship between the set change differences and the second calculation parameters is entered in advance by the staff, and it is necessary to ensure that the value obtained by multiplying the set change difference with a smaller value by the corresponding second calculation parameter is greater than the value obtained by multiplying the set change difference with a larger value by the corresponding second calculation parameter.

[0047] Step S303: performing calculations based on the interval similarity, the change degree value and the preset weight parameters to update the interval similarity.

[0048] The weight parameter is the importance parameter of the water level and the water level change for calculating the interval similarity set by the staff. It only needs the sum of the two weight parameters to be 100%. Under normal circumstances, the weight parameters of the two are 50% each. That is, the interval similarity can be updated by multiplying the interval similarity and the degree of change by their respective weight parameters and then adding them together, so that the determination of similar intervals can be more accurate.

[0049] After the interval similarity is updated and determined, the groundwater level monitoring and early warning method also includes: Step S400: Determine whether there are at least two identical intervals with the same and maximum interval similarity.

[0050] The purpose of the judgment is to find out whether there are multiple equivalent intervals that meet the requirements, so as to determine the only similar interval.

[0051] Step S4001: If there are not at least two identical intervals with the same and maximum interval similarity, the identical interval corresponding to the maximum interval similarity is determined as the similar interval.

[0052] When there are not at least two identical intervals with the same and maximum interval similarity, it means that there is only one identical interval that meets the requirements, and it can be determined as a similar interval.

[0053] Step S4002: If there are at least two identical intervals with the same and largest interval similarity, the identical interval corresponding to the largest interval similarity is determined as a candidate interval.

[0054] When there are at least two equivalent intervals with the same and largest interval similarity, it means that there are multiple equivalent intervals that can serve as similar intervals. Further analysis is required at this time, so they are defined as alternative intervals to distinguish different equivalent intervals for subsequent analysis.

[0055] Step S401: randomly selecting a change water level value in each candidate interval as a standard water level value, and defining the remaining change water level values ​​as comparison water level values.

[0056] Define standard water level values ​​and comparative water level values ​​to distinguish different changing water level values ​​for subsequent analysis.

[0057] Step S402: Calculate the representative parameter value according to the standard water level value and all the comparison water level values, determine the representative parameter value with the largest value according to the sorting rule, and define the standard water level value corresponding to the representative parameter value as the representative water level value.

[0058] The representative parameter value is the feasible value when the currently determined standard water level value represents other comparative water level values. The higher the value, the more the currently determined standard water level value can represent other comparative water level values. The calculation formula is: ,in represents the parameter value, is the standard water level value, For the Compare water level values, is the total number of comparison water level values; the largest representative parameter value can be determined through the sorting rules, that is, the standard water level value determined at this time can best represent the other comparison water level values, and it is determined as the representative water level value to distinguish different standard water level values, which is convenient for subsequent analysis.

[0059] Step S403: constructing a similar interval according to the representative water level value and the preset similar value.

[0060] The similar value is the maximum difference allowed between the representative water level value and the other parameters set by the staff that are closer to the representative water level value. The similar interval is the interval formed by the parameters that are closer to the representative water level value. The upper end point of the interval is determined by the representative water level value plus the similar value, and the lower end point of the interval is determined by the representative water level value minus the similar value.

[0061] Step S404: Count the changed water level values ​​in the similar intervals to determine the interval capacity, and determine the interval capacity with the largest value according to the sorting rule, and determine the candidate interval corresponding to the interval capacity as the similar interval.

[0062] The interval capacity is the number of changed water level values ​​in similar intervals. The sorting rules can be used to determine the interval capacity with the largest value, that is, there are fewer abnormal water level changes in the current candidate interval. At this time, it is determined as a similar interval for subsequent analysis.

[0063] After the interval capacity is determined, the groundwater level monitoring and early warning methods also include: Step S500: Determine whether there are at least two candidate intervals with the same maximum number of intervals.

[0064] The purpose of the judgment is to find out whether there are multiple candidate intervals that meet the requirements.

[0065] Step S5001: If there are not at least two candidate intervals with the same maximum interval capacity, the candidate interval corresponding to the maximum interval capacity is determined as a similar interval.

[0066] When there are not at least two intervals that contain the same maximum number of candidate intervals, it means that there is only one candidate interval that meets the requirements, and it can be determined as a similar interval.

[0067] Step S5002: If there are at least two candidate intervals with the same maximum interval capacity, the candidate interval corresponding to the maximum interval capacity is determined as the waiting interval, and the external environment parameters are obtained according to the current monitoring interval and the waiting interval.

[0068] When there are at least two intervals that contain the same and largest number of alternative intervals, it means that there are multiple alternative intervals that meet the requirements and can be used as similar intervals. At this time, they are defined as waiting intervals for subsequent analysis; the external environmental parameters are the parameter values ​​of various external environments of the groundwater monitoring area at the monitoring interval and the time point where the waiting interval is located, such as temperature, rainfall, etc.

[0069] Step S501: performing calculations based on two external environment parameters to determine the environmental similarity, and determining the environmental similarity with the largest value based on a sorting rule, and determining the waiting interval corresponding to the environmental similarity as the similarity interval.

[0070] Environmental similarity is a numerical value that reflects the similarity of the external environment in two time periods. It can be obtained by calculating the difference between each parameter, multiplying it by the corresponding calculation parameter and adding them together. Different parameters correspond to different calculation parameters, and the corresponding relationship is determined and entered in advance by the staff. The environmental similarity with the largest value can be determined through the sorting rules, that is, the external environment of the two intervals in the time period is relatively close, that is, the possibility of subsequent changes in groundwater levels being similar is high, and it can be determined as a similar interval at this time.

[0071] After the processing time point is determined, the groundwater level monitoring and early warning method also includes: Step S600: defining the groundwater level value corresponding to the processing time point as the processing water level value.

[0072] Define the processing water level value to distinguish different groundwater level values ​​for subsequent analysis.

[0073] Step S601: performing mean calculation based on the binding mutual differences determined in the similarity interval and the monitoring interval to determine the mean binding difference.

[0074] The mean binding difference is the average value obtained by calculating the mean of the differences between all bindings.

[0075] Step S602: Determine a normal value range according to the mean value, the difference value and a preset error tolerance value.

[0076] The allowable error value is the maximum difference between the mean binding difference and the mean value allowed when the staff determines that the data is relatively accurate and does not contain large errors. The normal numerical range is the range composed of relatively normal data. The upper endpoint of the interval is determined by the mean binding difference plus the allowable error value, and the lower endpoint of the interval is determined by the mean binding difference minus the allowable error value.

[0077] Step S603: performing mean calculation based on the bound mutual differences in the normal value range to determine the collective difference value, and performing calculation based on the processed water level value and the collective difference value to determine the water level warning threshold.

[0078] The collective difference value obtained by averaging the bound mutual differences in the normal numerical range can represent the water level difference corresponding to the two intervals after excluding abnormal data. At this time, by processing the water level value plus the collective difference value, a more accurate water level warning threshold can be obtained for use, thereby improving the monitoring and early warning effect of groundwater level.

[0079] Reference Figure 2 Based on the same inventive concept, an embodiment of the present invention provides a groundwater level monitoring and early warning system, including: An acquisition module is used to obtain the groundwater level value and demand response time; A processing module, connected to the acquisition module and the judgment module, for storing and processing information; A judgment module, connected with the acquisition module and the processing module, for judging the information; The processing module establishes a monitoring interval with the current time point as the rear end point and a width of the preset monitoring time on the preset time axis, and determines the monitoring water level set according to the groundwater level value in the monitoring interval; The processing module establishes a historical interval on the time axis with the current time point as the end point and a width of a preset historical duration, and randomly delimits an equivalent interval with the same width as the monitoring interval in the historical interval, wherein the historical duration is greater than the monitoring duration; The processing module determines an equivalent water level set in an equivalent interval according to the groundwater level value, and performs analysis based on the equivalent water level set and the monitored water level set to determine the interval similarity; The processing module determines the interval similarity with the largest value according to the preset sorting rule, defines the equivalent interval corresponding to the interval similarity as the similar interval, and establishes a change interval with a width of the preset change duration with the rear end point of the similar interval as the front end point; The judging module judges whether there is an underground water level value greater than a preset upper water level value in the variation interval; If the judgment module determines that there is no groundwater level value greater than the upper water level value, the processing module determines the preset fixed threshold as the water level warning threshold; If the judgment module determines that there is a groundwater level value greater than the upper water level value, the processing module defines the time point corresponding to the first groundwater level value greater than the upper water level value as the arrival time point, and determines the processing time point according to the arrival time point and the demand response time, and determines the groundwater level value corresponding to the processing time point as the water level warning threshold; An interval similarity determination module is used to determine the interval similarity between equivalent intervals and monitoring intervals; An interval similarity updating module, used for updating the determined interval similarity; An equivalent interval screening module is used to screen multiple equivalent intervals that meet the requirements; The candidate interval screening module is used to screen multiple candidate intervals that meet the requirements; The water level warning threshold determination module is used to determine a more accurate water level warning threshold.

[0080] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0081] An embodiment of the present invention provides a computer-readable storage medium storing a computer program that can be loaded by a processor and execute a groundwater level monitoring and early warning method.

[0082] Computer storage media include, for example, various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks.

Claims

1. A groundwater level monitoring and early warning method, characterized in that: include: Obtain groundwater level values ​​and demand response time; A monitoring interval with the current time point as the rear end point and a width of the preset monitoring duration is established on the preset time axis, and a monitoring water level set is determined according to the groundwater level value in the monitoring interval; Establish a historical interval on the time axis with the current time point as the end point and a width of the preset historical duration, and randomly define an equivalent interval with the same width as the monitoring interval in the historical interval, where the historical duration is greater than the monitoring duration; Determine an equivalent water level set in an equivalent interval according to the groundwater level value, and analyze the equivalent water level set and the monitored water level set to determine the interval similarity; Determine the interval similarity with the largest value according to the preset sorting rules, define the equivalent interval corresponding to the interval similarity as the similar interval, and establish a change interval with a width of the preset change duration with the rear end point of the similar interval as the front end point; Determine whether there is a groundwater level value greater than a preset upper water level value in the variation interval; If there is no groundwater level value greater than the upper water level value, the preset fixed threshold is determined as the water level warning threshold; If there is a groundwater level value greater than the upper limit water level value, the time point corresponding to the first groundwater level value greater than the upper limit water level value is defined as the arrival time point, and the processing time point is determined based on the arrival time point and the demand response time, and the groundwater level value corresponding to the processing time point is determined as the water level warning threshold.

2. The groundwater level monitoring and early warning method according to claim 1 is characterized in that: The steps for analyzing the equivalent water level set and the monitored water level set to determine interval similarity include: A one-to-one comparison is performed between the groundwater level values ​​in the equivalent water level set and the monitoring water level set to determine the two corresponding groundwater level values ​​as binding values; Performing a difference calculation based on all two mutual binding values ​​to determine the binding mutual difference; The first calculation parameters corresponding to the mutual differences of each binding are determined according to the preset first parameter matching relationship, and the interval similarity is determined by performing calculation according to all the mutual differences of the binding and the corresponding first calculation parameters.

3. The groundwater level monitoring and early warning method according to claim 2 is characterized in that: After the interval similarity is determined, the groundwater level monitoring and early warning method also includes: The difference calculation is performed based on the groundwater level values ​​obtained at any two adjacent time points in the equivalent water level set and the monitoring water level set to determine the changed water level value; The difference between the water level set and the monitoring water level set is calculated to determine the set change difference; Determine the second calculation parameter corresponding to each set change difference according to the preset second parameter matching relationship, and perform calculation according to all the set change differences and the corresponding second calculation parameters to determine the change degree value; The interval similarity is updated by calculation based on the interval similarity, the change degree value and the preset weight parameters.

4. The groundwater level monitoring and early warning method according to claim 3 is characterized in that: After the interval similarity is updated and determined, the groundwater level monitoring and early warning method also includes: Determine whether there are at least two identical intervals with the same and maximum interval similarity; If there are not at least two identical intervals with the same and largest interval similarity, the identical interval corresponding to the largest interval similarity is determined as the similar interval; If there are at least two identical intervals with the same and largest interval similarity, the identical interval corresponding to the largest interval similarity is determined as the candidate interval; In each candidate interval, a variable water level value is randomly selected as the standard water level value, and the remaining variable water level values ​​are defined as comparative water level values; Calculate the representative parameter value according to the standard water level value and all the comparison water level values, and determine the representative parameter value with the largest value according to the sorting rule, and define the standard water level value corresponding to the representative parameter value as the representative water level value; Constructing a similar interval based on the representative water level value and the preset similar value; The changed water level values ​​in the similar intervals are counted to determine the interval capacity, and the interval capacity with the largest value is determined according to the sorting rule, and the candidate interval corresponding to the interval capacity is determined as the similar interval.

5. The groundwater level monitoring and early warning method according to claim 4 is characterized in that: After the interval capacity is determined, the groundwater level monitoring and early warning methods also include: Determine whether there are at least two intervals that contain the same number of maximum candidate intervals; If there are not at least two candidate intervals with the same maximum number of intervals, the candidate interval corresponding to the maximum number of intervals is determined as the similar interval; If there are at least two candidate intervals with the same maximum number of intervals, the candidate interval corresponding to the maximum number of intervals is determined as the waiting interval, and the external environment parameters are obtained according to the current monitoring interval and the waiting interval; The environmental similarity is determined by calculation based on the two external environmental parameters, and the environmental similarity with the largest value is determined based on the sorting rule, and the waiting interval corresponding to the environmental similarity is determined as the similarity interval.

6. The groundwater level monitoring and early warning method according to claim 5 is characterized in that: After the processing time point is determined, the groundwater level monitoring and early warning method also includes: The groundwater level value corresponding to the treatment time point is defined as the treatment water level value; Performing mean calculation based on the bound mutual differences determined in the similar interval and the monitoring interval to determine the mean bound difference; The normal value range is defined according to the mean binding difference and the preset error tolerance value; The mean value is calculated based on the bound mutual differences in the normal value range to determine the collective difference value, and the water level warning threshold is determined based on the processed water level value and the collective difference value.

7. A groundwater level monitoring and early warning system, characterized in that: include: An acquisition module is used to obtain the groundwater level value and demand response time; A processing module, connected to the acquisition module and the judgment module, for storing and processing information; A judgment module, connected with the acquisition module and the processing module, for judging the information; The processing module establishes a monitoring interval with the current time point as the rear end point and a width of the preset monitoring time on the preset time axis, and determines the monitoring water level set according to the groundwater level value in the monitoring interval; The processing module establishes a historical interval on the time axis with the current time point as the end point and a width of a preset historical duration, and randomly delimits an equivalent interval with the same width as the monitoring interval in the historical interval, wherein the historical duration is greater than the monitoring duration; The processing module determines an equivalent water level set in an equivalent interval according to the groundwater level value, and performs analysis based on the equivalent water level set and the monitored water level set to determine the interval similarity; The processing module determines the interval similarity with the largest value according to the preset sorting rule, defines the equivalent interval corresponding to the interval similarity as the similar interval, and establishes a change interval with a width of the preset change duration with the rear end point of the similar interval as the front end point; The judging module judges whether there is an underground water level value greater than a preset upper water level value in the variation interval; If the judgment module determines that there is no groundwater level value greater than the upper water level value, the processing module determines the preset fixed threshold as the water level warning threshold; If the judgment module determines that there is a groundwater level value greater than the upper limit water level value, the processing module defines the time point corresponding to the first groundwater level value greater than the upper limit water level value as the arrival time point, and determines the processing time point based on the arrival time point and the demand response time, and determines the groundwater level value corresponding to the processing time point as the water level warning threshold.

8. A computer-readable storage medium, characterized in that: A computer program is stored which can be loaded by a processor and execute the method according to any one of claims 1 to 6.

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